librosa.effects.hpss¶
-
librosa.effects.
hpss
(y, **kwargs)[source]¶ Decompose an audio time series into harmonic and percussive components.
This function automates the STFT->HPSS->ISTFT pipeline, and ensures that the output waveforms have equal length to the input waveform y.
Parameters: - y : np.ndarray [shape=(n,)]
audio time series
- kwargs : additional keyword arguments.
See
librosa.decompose.hpss
for details.
Returns: - y_harmonic : np.ndarray [shape=(n,)]
audio time series of the harmonic elements
- y_percussive : np.ndarray [shape=(n,)]
audio time series of the percussive elements
See also
harmonic
- Extract only the harmonic component
percussive
- Extract only the percussive component
librosa.decompose.hpss
- HPSS on spectrograms
Examples
>>> # Extract harmonic and percussive components >>> y, sr = librosa.load(librosa.util.example_audio_file()) >>> y_harmonic, y_percussive = librosa.effects.hpss(y)
>>> # Get a more isolated percussive component by widening its margin >>> y_harmonic, y_percussive = librosa.effects.hpss(y, margin=(1.0,5.0))